["i6-i8","h14-k14","i8-i10","e14-g14","i10-i12","l15-l12","f6-f9","r15-r12","r6-r8","r12-r11","k6-m8","i15-h14","g9-e11","h12-f14","e11-d12","k12-m10","d6-c7","r11-r10","c12-c13","m10-o8","c13-c15","f15-d15","c8-b8","j20-j19"]